Can end lining device



Dec. 29, 1931. c. D. MGDQNAL ET AL 1,838,318

CAN END LINING DEVICE Fi led Nov. 5, 1929 V 2 Sheets-Sheet 2 Patented Dec. 29, 1931 UNITED STATES PATENT OFFICE CHARLES D. MCDONALD AND BERT A. DEISCH, OF CHICAGO, ILLINOIS, ASSIGNORS, BY MESNE ASSIGNMENTS, TO CONTINENTAL CAN COMPANY, INC., OF NEW YORK, N. Y.,

A. CORPORATION OF NEW YORK CAN END LINING DEVICE Application filed November 5, 1929. Serial No. 404,961"

This invention relates to can end lining devices, and its principal object is to provide novel means for applying a sealing 'liquid upon the edge portions of canends, particularly upon square, rectangular or other noncircular can ends.

Considerable diiiiculty has been encountercd in applylng liquid sealing. material upon can ends of this type, inasmuch as heretofore it has been practically impossible to deposit the'liquid evenly. upon the surface of such can ends. e have overcome this difficonstant speed to the travel -of 'tlfla nozzle (from which the liqui'd'is discharged) along that part of'the surface of the can endover which the liquid sealing material is laid.

The invention consists, therefore, in a can end lining device embodying a track or guide, shaped to conform to the path of travel required to be taken by the nozzle andhaving an endless driven element traveling at a constant speed and connected to the nozzle by a motion transmitting element arranged to transfer the movement of the driven element to the nozzle along the path of travel required to be taken by it. It further consists in a can end lining device in which the endless driven element is in the form of an endless link chain driven by a sprocket wheel and guided by a track or rail conforming in shape to the path of travel required to be taken by the nozzle.

It further consists in the several novel features of construction, arrangement and combination of parts hereinafter fully set forth and claimed.

The invention is clearly illustrated in the drawings accompanying this specification in which- Figure 1 is a view partly in side elevation and partly in central vertical longitudinal section taken through a can end lining device en bodying a-simple form of the present invention;

Fig. 2 is a plan thereof; and

Fig. 3 is a horizontal section taken on the line 33 of Fig. 1.

Referring to said drawings which illustrate one embodiment of the invention,

reference character 51 designates a suitable frame, here shown as comprising a base 5, a horizontal member, such as a bar or plate 6, located thereabove and secured to the base by upright cross pieces 7 which are bolted or otherwise fastened to the base 5 and upper member 6. Supportedupgnthepppermemher 6 of the frame is a came rid supporting ly movable for the purpose of receiving and discharging thecan'ends, one of which is seen ati9fi The means for raising andlower- -culty, providing means for impartingja v the supporting member 8 form no part of the present invention, and, consequently,

are not shown or described.

For the purpose of clamping a can end in place upon its support, two fingers 10 are provided, the upper ends of which are arranged to engage with the end edges of the can end, and the lower ends are'arranged to engage cam blocks 11 for the purpose of drawing the upper ends of the fingers away from the can end when the sup orting member 8 is being lowered after tlie lining has been applied to the can end. The fingers are member 8,"whichif'dsired, may be verticalshown as pivotallymounted upon arms 12 v secured to and extending out from the supporting member 8, and the upper ends of t e fingers are spring pressed toward the can end by coiled compression springs 13 interposed between the supporting member 8 and the lower ends of the fingers 10. The supporting member 8 is shown as mounted upon a post 14 secured to the'upper member 6 of the frame, and in the operation of the devlce, said supporting member reciprocates vertl' cally upon said post 14.

Above the supporting member 8 is a nozzle 15 from which is discharged the liquid lining or'sealing material which is to be applied to the can ends. In the present 1nstance, the can end is formed with a marginal groove 9 into which the sealing material is deposited by the nozzle 15 in the form of a ribbon as the nozzle travels over the groove 9*. The nozzle is connected to a reservoir or other container (not shown) for the sealing material by a tube or other conduit 16 and suitable valve mechanism is provided for the turning on and shutting oil the supply of members 6 and 5 of the sealing liquid for each can end. The post 16 carried by the arm 34 is adapted to be connected to the valve mechanism for controlling the supply of the sealing material to the nozzle.

The can end illustrated in the drawings is substantially rectangular in form, being rounded at the corners as shown in Fig. 2. The mechanism for moving the nozzle over the can end in a path or orbit co-incident with its groove 9, which forms the subject matter of the resent invention, will now be described in etail.

Supported by the base 4 and preferably between the upper and lower mem ers 6 and 5 are tracks or guideways around which run upper and lower driven endless elements 18 and 18, here shown as comprising endless link chains. The tracks or guideways may comprise two blocks 19 secured to the upper and lower frame members respectively as by cap screws 20. The marginal edges of said blocks conform to the shape of the groove 9 of the can end.

The rollers 21 which space the upper and lower links of the chains apart run along the marginal edges of the blocks 19. As a preference, outer track bars 22 are provided around the blocks 19, the inner marginal edges of which extend parallel with and conform to the shape of'the marginal edges of the blocks 19. The blocks 19 and outer track members 22 are spaced apart sufficiently to receive the rollers 21 therebetween allowing sufficient clearance to prevent binding, and the ends of said track members terminate adjacent one end of the blocks 19, as is shown in Fig. 3. The outer track members 22 are screwed or otherwise fastened to the adjacent faces of the upper and lower frame 4.

The two endless link chains 18 are spaced apart, one above the other, and are connected by a driving pin 23, which extends through one roller of each chain in co-axial alignment with the nozzle 15. As the chains travel around the blocks 19, the pin 23 describes an orbit or path of movement coincident with the groove 9'', and said movement of the pin 23 is transferred by suitable mechanism to the nozzle, which will be presently described, whereby the nozzle is caused to move over and along the groove 9 at a constant rate of speed.

Means are provided for driving the endless chains 18 at a constant rate of speed, and, as shown, said means comprises sprocket wheels 24, the teeth of which engage with the links of the chains 18 at places adjacent one end of the blocks 19. The sprocket Wheels are secured upon a shaft 25 journaled in the upper and lower members of the frame 4 and driven from a power shaft 26 through the instrumentality of intermeshing bevel pinions 27 respectively. The power shaft 26 is j ournaled in a bearing bracket 29 mounted upon the frame 4.

For transferring the movement of the driving pin 23 of the endless members or chains 18 to the nozzle 15, jointed arms 30 and 31 fixedly mounted upon a rock shaft 32 are provided, one of said arms being connected to the driving pin 23 and the other to the nozzle 15. The rock shaft 32 is rotatably mounted in the frame 4. Each jointed arm 30 and 31 comprises two arm members 33 and 34 jointed together by a common shaft or rod 35 that extends parallel with the rock shaft 32 and is capable of bodily movement with respect thereto. The members 33 of the jointed arms are fastened to the shaft 35 by bolts or pins 36, and collars 37 secured to the shaft 35 below the members 34 of the jointed arms support the jointed ends of the members 34 upon the shaft 35.

The end of the member 33 of the jointed arm 30, which is connected to the driving pin 23, may be provided with a sleeve or hub-like portion 38 that surrounds the pin. The two members 33 of the jointed arms are rigidly connected to the shaft or rod 35, the one moving in unison with the other, and the two members 34 are rigidly connected to the rock shaft 32, and move in unison with each other. Movement of the lower member 33 in any direction and at any speed is transmitted in precisely the same direction and speed to the upper arm member 33. It is to be observed, therefore, that with the motion transmitting means just described, whenever the driving pin 23 is moved through the path or orbit defined by the guideways in which the endless chains travel, the nozzle will be moved through a path coincident with said guideway and at the same rate of speed as that taken by the driving pin 23.

In the operation of this device, the liquid sealing material is delivered to the nozzle 15 and the flow thereof is controlled by the automatically operated valve mechanism, as is well understood, which shuts oil the flow of the material except when the nozzle is being moved around the groove of a can end. The drive shaft 26 is rotated thereby imparting rotation to the sprocket wheels 24, and, consequently, driving the endless chains 18, 18. A can end 9 being placed upon the supporting member 8 and clamped thereto by the fingers 10, the valve controlling the flow of the liquid sealing material through the nozzle is opened at the commencement of a cycle of operation. Inasmuch as the sprocket wheels 24 rotate at a constant rate of speed, the same constant rate of speed is transmitted to the endless chains 18, 18. and as the driving pin 23 travels about the orbit defined bv the guideways, it transmits the same constant speed to the nozzle 15 through a path or orbit co-incident with the and 28 mounted upon the shafts 25 and 26,path of movement or orbit traversed by the material is closed, the can end removed, and

another one fed upon the supporting member. The operation described is continued indefinitely.

It has been found that with mechanism of the character above described, the liquid sealing material is distributed evenly in the groove of the can end, and that the device may be operated at a high rate of speed so as to operate in conjunction with other mechanism for forming the can ends and for drying them.

More or less variation of the exact details of construction is possible without departing from the spirit of this invention. We desire, therefore, not to limit ourselves to the exact form of the construction shown and described, but intend, in the following claims to point out all of the invention disclosed herein.

We claim as new, and desire to secure by Letters Patent:

1. A can end lining device comprisin in combination a can end support, a traveling nozzle, a rotary constant speed driving element, and motion transmitting mechanism between said driving element and nozzle for translating said rptary constant speed motion into a non-circular constant seed motion of the nozzle.

2. A can end lining device comprising in combination a can end support, a trave ing nozzle, a rotary constant speed driving element, a constant speed endless member driven by said driving element, a guideway for'said endless member defining the path traveled by said nozzle, and motion transmitting means operatively interposed between said endless member and nozzle.

3. A can end lining device comprisin in combination a can end support, a trave ing nozzle a sprocket wheel rotated at a constant speed, an endless chain driven by said sprocket wheel, a guideway for said endless chain defining the path traveled by said nozzle, and motion transmitting means operatively interposed between said endless chain and nozzle.

4. A can end lining device comprising in combination a can end support, a traveling nozzle, a pair of spaced sprocket wheels rotated at constant speed, a pair of endless chains driven by said sprocket wheels, a pair of spaced guideways for said endless chains defining the path traveled by said nozzle, and motion transmitting means operatively interposed between said endless chains and nozzle including a driving pin connecting opposite links of the two endless chains.

5. A can end lining device comprising in combination a can end support, a traveling nozzle, a rotating constant speed driving element, a constant speed endless member driven by said driving member defining the path traveled by said nozzle, a rock shaft, and a pair of parallel jointed arms connected together at their joints, and having arm members rigidly connected to said rock shaft and other members connected to said endless member and nozzle respectively.

6. A can end lining device comprising in combination a can end support, a traveling nozzle, a rotating sprocket wheel traveling at a constant speed, an endless sprocket chain driven by said sprocket wheel, a guideway for said endless sprocket chain defining the path traveled by said nozzle, as pair of parallel jointed arms, a rock shaft rigidly secured to one of the ends of both jointed arms, a rod extending through the jointed ends of the arms and rigidly secured to corresponding members of the arms, the other ends of said jointed arms being connected respectively to the endless sprocket chain and nozzle.

7. A can end lining device for substantially rectangular can ends comprising in combination a can end support, a traveling nozzle for applying a liquid lining to a substantially rectangular groove in the can end sup ported by the can end support, a track shaped to conform to the groove in the can end, a rotatable driving element, an endless driven element guided by said track and driven by said driving element, and motion transmitting means between said endless driven element and the nozzle for transmitting motion from said .driven element to the nozzle in a path co-incident with the path of movement taken by the driven element. i

8. A can end lining device comprising in combination a can end support, a traveling nozzle for applying a liquid lining to a marginal groove in a can end supported by said can end support, tracks shaped to conform to the grooves in the can end, a pair of sprocket wheels rotated at a constant speed, a pair of endless chains driven by said sprocket wheels and guided by said tracks, a driving pin connecting oppositely disposed links of said endless sprocket chains, and motion transmitting means connected to said driven pin and to said nozzle for transferring motion from said driving pin to said nozzle in a path co-incident with the path of movement taken by the driving pin.

9. A can end lining device comprising in combination, a can end support for stationarily supporting a can end having an irregular shaped channel therein, a traveling nozzle, means for moving said nozzle over said irregular shaped channel at a uniform speed comprising a stationary track having a shape similar to the shape of the irregular channel in the can end, a traveling propelling member moving along said track, operative connections between said traveling ,member and inc the nozzle for imparting movement to said nozzle over the irregular channel in the can end, and means for moving said traveling member at a uniform speed.

5 10. A can end lining device comprising in combination a can end support for stationarily supporting a can end having an irregular shaped channel therein, a traveling nozzle supported above the channel in the can end,

a track having a shape similar to the shape of the channel in the can end, a propelling mechanism for moving said nozzle over said irregular shaped channel, including a propelling element moving along said track, and

means for imparting a uniform speed to said traveling element.

11. A can end lining device comprising in combination a can end support for stationarily supporting a can end having an irregular shaped channel therein, a traveling nozzle supported above the channel in the can end, a track having a shape similar to the shape of the channel in the can end, an endless chain movingalongsaid track, means for imparting a uniform speed to said chain, and operative connections between one point of said chain and the nozzle for transferring movement from said chain to said nozzle.

CHARLES D. MCDONALD.

BERT A. DEISCH. 

